Ensure neither the source nor destination folders contain symbols or non-English characters.

The installer relies on these libraries to function correctly. Download and install the All-in-One Visual C++ Redistributable package from reputable sources like TechPowerUp to ensure all versions from 2005 to the latest are updated. 4. Install in Safe Mode

⚠️ Re-enable after installation.

The installation files themselves may be incomplete or corrupted during download.

Installers for FIFA 13 (especially repacks) use "cracks" or key generators that antivirus software often flags as malicious. The antivirus may silently block the unarc.dll from writing files, causing Error Code 6.